On the crystalline nature of poly(di-isopropyl fumarate)

Molecular order of poly(di-isopropylfumarate) (PDIPF), obtain ed by free-radical initiation, is investigated by calorimetric measurements and X-ray diffraction analysis. It is found that the polymer decomposes without melting at temperatures above 200°C while displaying two endothermic transitions,...

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Detalles Bibliográficos
Autores principales: Cortizo, María Susana, Macchi, Edgardo M., Figini, Rubén Víctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 1988
Materias:
Física
Ciencias Exactas
poly(di-isopropylfumarate)
calorimetric measurements
polymerization reaction
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141372
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141372
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
poly(di-isopropylfumarate)
calorimetric measurements
polymerization reaction
spellingShingle Física
Ciencias Exactas
poly(di-isopropylfumarate)
calorimetric measurements
polymerization reaction
Cortizo, María Susana
Macchi, Edgardo M.
Figini, Rubén Víctor
On the crystalline nature of poly(di-isopropyl fumarate)
topic_facet Física
Ciencias Exactas
poly(di-isopropylfumarate)
calorimetric measurements
polymerization reaction
description Molecular order of poly(di-isopropylfumarate) (PDIPF), obtain ed by free-radical initiation, is investigated by calorimetric measurements and X-ray diffraction analysis. It is found that the polymer decomposes without melting at temperatures above 200°C while displaying two endothermic transitions, probably of the solid-solid type, at 65 and 126°C respectively. Further evidence of crystalline order and orientability is provided by the X-ray experiments which show one equatorial (11.16 A) and two meridional (4.81 and 2.40 A) reflections respectively. The corresponding stereoselective nature of the polymerization reaction is interpreted as resulting from the steric influence of the bulky isopropyl substituents of the monomer.
format Articulo
Articulo
author Cortizo, María Susana
Macchi, Edgardo M.
Figini, Rubén Víctor
author_facet Cortizo, María Susana
Macchi, Edgardo M.
Figini, Rubén Víctor
author_sort Cortizo, María Susana
title On the crystalline nature of poly(di-isopropyl fumarate)
title_short On the crystalline nature of poly(di-isopropyl fumarate)
title_full On the crystalline nature of poly(di-isopropyl fumarate)
title_fullStr On the crystalline nature of poly(di-isopropyl fumarate)
title_full_unstemmed On the crystalline nature of poly(di-isopropyl fumarate)
title_sort on the crystalline nature of poly(di-isopropyl fumarate)
publishDate 1988
url http://sedici.unlp.edu.ar/handle/10915/141372
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AT macchiedgardom onthecrystallinenatureofpolydiisopropylfumarate
AT figinirubenvictor onthecrystallinenatureofpolydiisopropylfumarate
bdutipo_str Repositorios
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